Thanks Thorman, Salectric, Rakuenow, Ska_man, and Cinellipro.
I will likely go forward, and give the Maple Platform a go.
They seem to move well on the used market, so I think it's worth a shot. My 2 shelf Rix Rax is actually on the low side, so it will raise it up a at least 4" w/ the cork product as well. I did try a granite/MDF composite shelf before, and did not like it much at the time. I felt it added a hardness to the sound, so that's the reason I am sticking to wood.
I will likely go forward, and give the Maple Platform a go.
They seem to move well on the used market, so I think it's worth a shot. My 2 shelf Rix Rax is actually on the low side, so it will raise it up a at least 4" w/ the cork product as well. I did try a granite/MDF composite shelf before, and did not like it much at the time. I felt it added a hardness to the sound, so that's the reason I am sticking to wood.